I was having a lot of problems with my printer that had another of brand toner.
I ordered this for the HP M401n and it has worked flawlessly.
Great value and I've never had a problem with ink quality!
I have 2 printers that use the same toner so it worked out great for me.
I have started using the second one and so far the print quality is excellent.
2 out of the 4 toner cartridges do not print correctly and have excessive overflow of ink on the paper.
I don't know if the problem was with the delivery or on the manufacturing end.
I do know that I'll never buy this product again.
One was damaged, and my last backup, the fourth one, printed completely black pages.
So I actually paid double the price, and now am awaiting arrival of a new one and my printer is out of service since the fourth one did not work.